<template>
	<div class="app-container">
		<!-- 头部 -->
		<mt-header fixed title="固定在顶部">
			<div slot="left" @click="goBack" v-show="flag">
				<mt-button icon="back">返回</mt-button>
			</div>
		</mt-header>
		<!-- 内容 -->
		<transition>
			<router-view></router-view>
		</transition>

		<!-- 底部 begin -->
		<nav class="mui-bar mui-bar-tab">
			<router-link class="mui-tab-item-pqq" to="/home">
				<span class="mui-icon mui-icon-home"></span>
				<span class="mui-tab-label">首页</span>
			</router-link>
			<router-link class="mui-tab-item-pqq" to="/member">
				<span class="mui-icon mui-icon-contact"></span>
				<span class="mui-tab-label">会员</span>
			</router-link>
			<router-link class="mui-tab-item-pqq" to="/shopcar">
				<span class="mui-icon mui-icon-extra mui-icon-extra-cart">
					<span class="mui-badge" id="badge">{{ this.$store.getters.getAllCount }}</span>
				</span>
				<span class="mui-tab-label">购物车</span>
			</router-link>
			<router-link class="mui-tab-item-pqq" to="/search">
				<span class="mui-icon mui-icon-search"></span>
				<span class="mui-tab-label">搜索</span>
			</router-link>
		</nav>
		<!-- 底部 end -->

	</div>
</template>

<script>
export default {
    data() {
        return {
            flag: false
        };
    },
    created() {
		// 初始化 flag
		this.setFlag();
 		
	},
    methods: {
        // 点击后退事件
        goBack() {
            this.$router.go(-1);
		},
		// 初始化 flag
		setFlag(){
			this.flag = this.$route.path === '/home' ? false : true;
		}
    },
    watch: {
		// 监听路由
        "$route.path": function(newVal) {
			if (newVal == '/home') {
				this.flag = false;
			}else {
				this.flag = true;
			}
		}
    }
};
</script>


<style lang="scss" scoped>
body {
    background-color: #fff;
}
.app-container {
    padding-top: 40px;
    padding-bottom: 60px;
    overflow-x: hidden;
    .mint-header {
        z-index: 99999;
    }
}
.v-enter {
    opacity: 0;
    transform: translateX(100%);
}
.v-leave-to {
    opacity: 0;
    transform: translateX(-100%);
    position: absolute;
}
.v-enter-active,
.v-leave-active {
    transition: all 0.5s ease;
}
/* tar */
.mui-bar-tab .mui-tab-item-pqq.mui-active {
    color: #007aff;
}
.mui-bar-tab .mui-tab-item-pqq {
    display: table-cell;
    overflow: hidden;
    width: 1%;
    height: 50px;
    text-align: center;
    vertical-align: middle;
    white-space: nowrap;
    text-overflow: ellipsis;
    color: #929292;
}
.mui-bar-tab .mui-tab-item-pqq .mui-icon {
    top: 3px;
    width: 24px;
    height: 24px;
    padding-top: 0;
    padding-bottom: 0;
}
.mui-bar-tab .mui-tab-item-pqq .mui-icon ~ .mui-tab-label {
    font-size: 11px;
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
}
</style>



